[Centos] GRUB bootloader

[bcurotto@xxxxxxxx (Beth Curotto)]

I have raid'd a copy of my system for backup purposes to another hard drive,
not deleting the MBR. When I boot with GRUB (Centos 3.3) it now lists
multiple instances to boot, but in fact there is only one complete system.
Is there a way to delete additional instances from the GRUB bootup screen?

Thanks, Beth